from scipy.stats import norm
def get_pdf_list(kl_days_list):
    # kl_days_list = [120, 90, 60, 30, 15, 10, 5]
    pdf_list = []
    mean = 0
    std = 20
    sum = 0
    for k in kl_days_list:
        sum += norm.pdf(k, mean, std)
    for k in kl_days_list:
        pdf_list.append(norm.pdf(k, mean, std) / sum)
    return pdf_list
